HTMLランドマークチェッカー
HTMLを貼り付けて、main・nav・header・footer・asideなどのランドマーク領域を検証します。
100% client-side · no upload
Landmark report
How to use
- Paste your page HTML or a significant snippet into the text area.
- Click Check Landmarks to see which landmark regions were found.
- Review warnings for missing required landmarks (main) or unlabelled duplicate landmarks (nav).
Related accessibility tools
- ARIA Cheat Sheet — WAI-ARIA roles and attributes reference
- Screen Reader Preview — see how HTML reads aloud
- Focus Order Viewer — inspect tab order
よくある質問
- Is this landmark checker free?
- Yes, completely free with no signup and no usage limits.
- Does my data leave my device?
- No. All processing runs entirely in your browser. Nothing is sent to any server.
- Does it work on mobile?
- Yes. Works on iPhone Safari and Android Chrome without installing any app.
Last updated: By jarvisbox